The first attempt to model coordinated rhythmic movement was the Haken-Kelso-Bunz (HKB) model. This model embodies a particular approach to modelling complex systems that has become common in perception/action research... Read more »
Haken, H., Kelso, J.A.S., Bunz, H. (1985) A theoretical model of phase transitions in human hand movements. Biological Cybernetics, 51(5), 347-356. DOI: 10.1007/BF00336922
This is the second in a five part series on the neuroscience of murder and aggression. This post will address some key issues in the epidemiology of murder and antisocial personality disorder. The number of murders in the U.S. has been stable at between 16,000 and 17,000 per year over the 2000 to 2008 time period.. The number peaked at around 24,700 in 1991. The number has decreased since the early 1990s despite a steadily increasing total U.S. population.The reason for t........ Read more »
Lenzenweger MF, Lane MC, Loranger AW, & Kessler RC. (2007) DSM-IV personality disorders in the National Comorbidity Survey Replication. Biological psychiatry, 62(6), 553-64. PMID: 17217923
Coid J, Yang M, Ullrich S, Roberts A, & Hare RD. (2009) Prevalence and correlates of psychopathic traits in the household population of Great Britain. International journal of law and psychiatry, 32(2), 65-73. PMID: 19243821
Marcus DK, Lilienfeld SO, Edens JF, & Poythress NG. (2006) Is antisocial personality disorder continuous or categorical? A taxometric analysis. Psychological medicine, 36(11), 1571-81. PMID: 16836795
Mrs. Charbin’s blood pressure just kept going up. She felt fine—no chest pain, no shortness of breath, no headaches—but the numbers put her at risk. At 55, her risk of developing heart disease at some point in her life is high, and is made even higher by her hypertension. For each 20 mm Hg rise [...]... Read more »
Aram V. Chobanian, MD; George L. Bakris, MD; Henry R. Black, MD; William C. Cushman, MD; Lee A. Green, MD, MPH; Joseph L. Izzo, Jr, MD; Daniel W. Jones, MD; Barry J. Materson, MD, MBA; Suzanne Oparil, MD; Jackson T. Wright, Jr, MD, PhD; Edward J. Roccella. (2003) The Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure: the JNC 7 Report--Correction. JAMA: The Journal of the American Medical Association, 290(2), 197-197. DOI: 10.1001/jama.290.2.197
The ALLHAT Officers and Coordinators for the ALLHAT Collaborative Research Group, . (2002) Major Outcomes in High-Risk Hypertensive Patients Randomized to Angiotensin-Converting Enzyme Inhibitor or Calcium Channel Blocker vs Diuretic: The Antihypertensive and Lipid-Lowering Treatment to Prevent Heart Attack Trial (ALLHAT). JAMA: The Journal of the American Medical Association, 288(23), 2981-2997. DOI: 10.1001/jama.288.23.2981
I am sad to report that it is indeed confirmed by official sources that primatologist Marc Hauser engaged in several instances of what is being termed misconduct while carrying out experiments in his lab.
Dean Michael Smith issued the following letter to members of the Harvard community today: Read the rest of this post... | Read the comments on this post...... Read more »
Speaking of luck, we just released a paper onto SSRN about luck and skill entitled Differentiating Skill and Luck in Financial Markets with Streaks. This paper, which I worked on with Andrew Mauboussin (a brilliant high school student who worked in our lab this summer), examines the relationship between skill and luck using mutual fund [...]... Read more »
Andrew Mauboussin, & Samuel Arbesman. (2010) Differentiating Skill and Luck in Financial Markets with Streaks. SSRN: http://ssrn.com/abstract. info:/
Two papers in one post this time out. One of these was brought to my attention by Joerg Heber, the other I was reminded of when checking some information for last week's mathematical post on photons. They fit extremely well together though, and both relate to the photon correlation stuff I was talking about last week.
OK, what's the deal with these? These are two papers, one recent Optics Express paper from a week or so ago, the other a Nature article from a few years back. The Nature paper inc........ Read more »
Jeltes, T., McNamara, J., Hogervorst, W., Vassen, W., Krachmalnicoff, V., Schellekens, M., Perrin, A., Chang, H., Boiron, D., Aspect, A.... (2007) Comparison of the Hanbury Brown–Twiss effect for bosons and fermions. Nature, 445(7126), 402-405. DOI: 10.1038/nature05513
Manning, A., Hodgman, S., Dall, R., Johnsson, M., & Truscott, A. (2010) The Hanbury Brown-Twiss effect in a pulsed atom laser. Optics Express, 18(18), 18712. DOI: 10.1364/OE.18.018712
What should trainers and instructors do before starting their courses that will maximize learning for students?... Read more »
Mesmer-Magnus, J., & Viswesvaran, C. (2010) The role of pre-training interventions in learning: A meta-analysis and integrative review. Human Resource Management Review, 20(4), 261-282. DOI: 10.1016/j.hrmr.2010.05.001
In a series of posts over at Scientific American's blog CrossCheck, John Horgan describes how several recent articles and books have prompted him to re-evaluate his views on nuclear energy. He specifically recommends Gynweth Craven's Power to Save the World, discusses John Mueller's Atomic Obsession, and describes how Wade Allison's Between Radiation and Reason has challenged his views about the risks of radiation exposure. Horgan's seminal End of Science partly inspired my research focus in gra........ Read more »
Nisbet, M. (2009) Communicating Climate Change: Why Frames Matter for Public Engagement. Environment: Science and Policy for Sustainable Development, 51(2), 12-23. DOI: 10.3200/ENVT.51.2.12-23
O'Leary and Gould (2010) tell us that in an area woefully short of research evidence, what they found in their study was that the adult male survivors of child sexual abuse can learn to cope well with that abuse history. Here, active, practical support from trusted others plays an essential role.... Read more »
O'Leary, P., & Gould, N. (2010) Exploring Coping Factors amongst Men Who Were Sexually Abused in Childhood. British Journal of Social Work. DOI: 10.1093/bjsw/bcq098
Two of the most diverse groups of living things on Earth are flowering plants and the insects that make their living from flowering plants. Biologists have long thought that the almost incessant, intimate interactions between plants and plant-eating insects might be the evolutionary cause of each group's spectacular diversity. On a smaller scale, this means that we're interested in the reasons that specific insects and plants interact in the first place—what evolutionary trails leads one insec........ Read more »
Drummond, C., Xue, H., Yoder, J., & Pellmyr, O. (2009) Host-associated divergence and incipient speciation in the yucca moth Prodoxus coloradensis (Lepidoptera: Prodoxidae) on three species of host plants. Heredity, 105(2), 183-96. DOI: 10.1038/hdy.2009.154
Kawakita, A., & Kato, M. (2006) Assessment of the diversity and species specificity of the mutualistic association between Epicephala moths and Glochidion trees. Molecular Ecology, 15(12), 3567-81. DOI: 10.1111/j.1365-294X.2006.03037.x
Kawakita, A., Okamoto, T., Goto, R., & Kato, M. (2010) Mutualism favours higher host specificity than does antagonism in plant-herbivore interaction. Proc. Royal Soc. B, 277(1695), 2765-74. DOI: 10.1098/rspb.2010.0355
What you can’t see can kill you. Researchers investigating why some birds are especially prone to hitting power lines have discovered that they literally can’t see where they are flying. That means typical anti-collision efforts, such as hanging warning markers on transmission lines, won’t help fowl that fly blind.
The world’s 65 million kilometers of […] Read More »... Read more »
Martin, G., & Shaw, J. (2010) Bird collisions with power lines: Failing to see the way ahead?. Biological Conservation. DOI: 10.1016/j.biocon.2010.07.014
For patients with obesity and type 2 diabetes, bariatric surgery is by far the most effective treatment - it is, indeed, the only form of treatment that can put patients into full long-term remission.
But is surgery really a cost-effective option for health systems looking to contain the immense economic and health burden of diabetes?
A paper [...]... Read more »
Makary MA, Clarke JM, Shore AD, Magnuson TH, Richards T, Bass EB, Dominici F, Weiner JP, Wu AW, & Segal JB. (2010) Medication utilization and annual health care costs in patients with type 2 diabetes mellitus before and after bariatric surgery. Archives of surgery (Chicago, Ill. : 1960), 145(8), 726-31. PMID: 20713923
There is evidence that categorisations can influence perception, which has been identified as a crucial argument for Relativism. In this post, the idea of perceptual warping is explained and applied to colour categorisation.... Read more »
Goldstone, R. (1994) Influences of categorization on perceptual discrimination. Journal of Experimental Psychology: General, 123(2), 178-200. DOI: 10.1037//0096-34220.127.116.11
Kuhl, P. (1994) Learning and representation in speech and language. Current Opinion in Neurobiology, 4(6), 812-822. DOI: 10.1016/0959-4388(94)90128-7
Miyawaki, K., Strange, W., Verbrugge, R. R., Liberman, A. M., Jenkins, J. J., & Fujimura, O. (1975) An effect of linguistic experience: The discrimination of (r) and (l) by native speakers of Japanese and English . Perception and Psychophysics, 331-340. info:/
KUHL, P. (1983) Perception of auditory equivalence classes for speech in early infancy. Infant Behavior and Development, 6(2-3), 263-285. DOI: 10.1016/S0163-6383(83)80036-8
Lupyan G. (2008) From chair to "chair": a representational shift account of object labeling effects on memory. Journal of experimental psychology. General, 137(2), 348-69. PMID: 18473663
Buchsbaum, G. (2002) Color categories revealed by non-negative matrix factorization of Munsell color spectra. Vision Research, 42(5), 559-563. DOI: 10.1016/S0042-6989(01)00303-0
Connell, L., & Lynott, D. (2009) Is a bear white in the woods? Parallel representation of implied object color during language comprehension. Psychonomic Bulletin , 16(3), 573-577. DOI: 10.3758/PBR.16.3.573
This is my first blog post for Research Blogging, a thriving community of academics that blog about academic research. This post focuses on a number of articles recently published in the International Journal of Communication (IJoC), which report on the … Continue reading →... Read more »
Hintz, A., & Milan, S. (2010) Social Science is Police Science: Researching Grass-Roots Activism. International Journal of Communication, 837-844. info:/
Fancy going on a wild plankton chase around Antarctica this Christmas? In November 2002, a team of scientists did exactly that. They went on a nine-week expedition around the Southern Ocean – the ocean surrounding Antarctica – looking for a lush marine oasis awash with marine life and previously overlooked by science. Among their trials and tribulations, Dr Walter Geibert [...]... Read more »
Geibert, W., Assmy, P., Bakker, D., Hanfland, C., Hoppema, M., Pichevin, L., Schröder, M., Schwarz, J., Stimac, I., Usbeck, R.... (2010) High productivity in an ice melting hot spot at the eastern boundary of the Weddell Gyre. Global Biogeochemical Cycles, 24(3). DOI: 10.1029/2009GB003657
“Adenovirus” (by Mapposity) There are two aspects about virology that constantly amaze me: How much we know about viruses, and how little we know about viruses. Adenovirus research offers examples of both. Adenoviruses are probably among the best-studied virus groups.1 We really do know an amazing amount about them. But it was only last year [...]... Read more »
Zhang, Y., Huang, W., Ornelles, D., & Gooding, L. (2010) Modeling Adenovirus Latency in Human Lymphocyte Cell Lines. Journal of Virology, 84(17), 8799-8810. DOI: 10.1128/JVI.00562-10
A chain of proteins hold bacterial DNA in a compacted spiral.
You and I are eukaryotes. Our cells have nuclei, repositories that contain our DNA and the proteins that read them to produce an RNA copy of them.
In earlier articles, I’ve mentioned in passing how the enormous length of DNA in our cells is fitted into [...]... Read more »
Arold, S., Leonard, P., Parkinson, G., & Ladbury, J. (2010) H-NS forms a superhelical protein scaffold for DNA condensation. Proceedings of the National Academy of Sciences. DOI: 10.1073/pnas.1006966107
Dame, R., Luijsterburg, M., Krin, E., Bertin, P., Wagner, R., & Wuite, G. (2005) DNA Bridging: a Property Shared among H-NS-Like Proteins. Journal of Bacteriology, 187(5), 1845-1848. DOI: 10.1128/JB.187.5.1845-1848.2005
Thanbichler, M., Wang, S., & Shapiro, L. (2005) The bacterial nucleoid: A highly organized and dynamic structure. Journal of Cellular Biochemistry, 96(3), 506-521. DOI: 10.1002/jcb.20519
Truancy in late elementary and early secondary education: The influence of social bonds and self-control—the TRAILS study From International Journal of Behavioral Development It is recognized that if children start truancy at an early age, the likelihood of their involvement in other deviant behavior increases highly. This study reveals that risk factors for truancy include [...]... Read more »
Veenstra, R., Lindenberg, S., Tinga, F., & Ormel, J. (2010) Truancy in late elementary and early secondary education: The influence of social bonds and self-control-- the TRAILS study. International Journal of Behavioral Development, 34(4), 302-310. DOI: 10.1177/0165025409347987
In a series of posts, I’ve been discussing constraints on the evolution of colour terms. In the last post, I discussed Perceptual Warping. Here, a further adjustment to the assumptions about perceptual space is suggested.
The assumption that all perceptual spaces are the same may be unrealistic and may favour Universalism (see Levinson, 2000). To begin with, . . . → Read More: Evolution of Colour Terms: 8 Embodied Relationships... Read more »
Bornstein, M., Kessen, W., & Weiskopf, S. (1976) Color vision and hue categorization in young human infants. Journal of Experimental Psychology: Human Perception and Performance, 2(1), 115-129. DOI: 10.1037/0096-1518.104.22.168
Roberson, D., Davidoff, J., Davies, I., & Shapiro, L. (2004) The Development of Color Categories in Two Languages: A Longitudinal Study. Journal of Experimental Psychology: General, 133(4), 554-571. DOI: 10.1037/0096-3422.214.171.1244
Stem cells – with their famed ability to change into any type of cell – hold tremendous promise for medicine, but growing them is a challenging task. “For therapeutics, you need millions and millions of cells,” says Dr Krishanu Saha from the Whitehead Institute for Biomedical Research. “If we can make it easier for the cells [...]... Read more »
Mei, Y., Saha, K., Bogatyrev, S., Yang, J., Hook, A., Kalcioglu, Z., Cho, S., Mitalipova, M., Pyzocha, N., Rojas, F.... (2010) Combinatorial development of biomaterials for clonal growth of human pluripotent stem cells. Nature Materials, 768-778. DOI: 10.1038/nmat2812
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